package com.leyou.item.dto;

import com.leyou.common.dto.BaseDTO;
import com.leyou.common.entity.BaseEntity;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;

import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.stream.Collectors;

@Data
@NoArgsConstructor
@EqualsAndHashCode(callSuper = false)
public class BrandDTO extends BaseDTO {
    private Long id;
    private String name;
    private String image;
    private Character letter;
    private List<Long> categoryIds;

    public BrandDTO(BaseEntity entity){
        super(entity);//直接调用父类
    }

    public static <T extends BaseEntity>List<BrandDTO> convertEntityList(Collection<T>list){
        if (list ==null){
            return Collections.emptyList();
        }
        return list.stream().map(BrandDTO::new).collect(Collectors.toList());
    }
}
